Answer
(y + 7)(y - 3)
Work Step by Step
$(y + 2)^{2}$ - 25 = $y^{2}$ + 4y + 4 - 25 = $y^{2}$ + 4y - 21
= (y + 7)(y - 3)
Check by multiplying factors with FOIL:
y(y) + y(-3) + 7(y) + 7(-3)
= $y^{2}$ - 3y + 7y - 21
= $y^{2}$ + 4y - 21
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Review - Page 331: 111
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